JPH0247375A - Aromatic car sheets - Google Patents

Abstract

PURPOSE:To obtain aromatic car sheets consisting of a woven or knit fabric having lasting aroma without impairing feeling of a fiber itself by applying perfume-containing microcapsules and a silicone-based resin as binder in a specific proportion to the woven or knit fabric. CONSTITUTION:An aromatic woven or knit fabric, obtained by blending perfume- containing microcapsules (preferred example; lowformalin microcapsules) as a binder with preferably a lowtemperature reactive type organopolysiloxane prepolymer at (2:1)-(1:5) weight ratio and applying 0.3-7wt.% resultant blend to a woven or knit fabric consisting of natural, synthetic fibers, etc., and heat- treating the woven or knit fabric, excellent in sustained release properties and good in durability. The resultant fabric is suitably used as aromatic car sheets. Furthermore, the woven or knit fabric is preferably previously subjected to water repelling treatment without impairing feeling.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention involves attaching microcapsules containing fragrance to aromatic car sheets, specifically woven or knitted fabrics.
Relates to car seats made from products with a durable fragrance.

(Prior Art) Various developments have been made regarding clothing with aromatic properties, and many of them have been on the market. However, many of these products are simply sprayed with perfume onto the final product, or simply coated with fragrant substances on the surface, and the fragrance disappears when the fragrance evaporates, and wash resistance is affected. The fragrance was so poor that it completely disappeared after one wash.

Therefore, processing methods to maintain the fragrance for a long period of time are disclosed in Japanese Patent Publication No. 53-47440 and Japanese Patent Application Laid-open No. 54-11228.
Many proposals have been made, including Publication No. 3.

Under these circumstances, various attempts have been made to impart fragrance to woven and knitted fabrics and clothing. Conventionally, this has been done by spraying perfume at the time of finishing, or by enclosing aromatic paper in a packaging bag during packaging, or by using aromatic paper as the core, and transferring the scent to woven or knitted fabrics or clothing. It was something.

Furthermore, JP-A No. 61-63716 proposes an aromatic core-sheath type composite fiber in which a fragrance is dispersed and mixed in the core and has a hollow part, but the fragrance volatilizes and changes in quality at high temperatures. There is a problem in that there are only a limited number of fragrances that can be easily processed and that can withstand melt spinning.

(Problems to be Solved by the Invention) However, it goes without saying that the clothes obtained as described above have poor fragrance durability;
The fragrance completely disappeared after washing twice, and the product had extremely low commercial value. Furthermore, the fragrance quickly evaporates when it comes into contact with the outside air while being worn, and some products even maintain their fragrance for only a few hours after being worn. In addition, in cases where the scent of aromatic paper is transferred to clothing in a packaging bag, the strength of the fragrance varies depending on the time elapsed after the bag is sealed, and as a result, the scent is not pleasant and the product itself may be defective. There were cases where it happened.

In view of the above-mentioned circumstances, the inventors of the present invention have conducted repeated studies with the aim of imparting a durable fragrance to Car Seat H, and have found that using microcapsules containing a fragrance is suitable for fragrance processing. We obtained the knowledge that

However, the present invention provides that a fragrance can be maintained for a long time by attaching microcapsules containing a fragrance to woven or knitted fabrics or car seats, and that the microcapsules may be broken little by little due to friction during wear or may be intentionally damaged. II'
! ! It focuses on the fact that rubbing produces a diverging effect. However, as disclosed in JP-A-49-19197 and JP-A-52-31200, when microcapsules and a binder are simply attached to a woven or knitted fabric, or as disclosed in JP-A-53-106885, As described above, even if the binder is applied using the transfer printing method, a sufficiently durable fragrance cannot be imparted, and furthermore, the binder penetrates into the woven and knitted yarns, resulting in an extremely hard texture. also occurred.

The present invention was made based on the above-mentioned knowledge, and satisfies the effects of "desirable fragrance emission" and "fragrance sustainability" without impairing the texture of the woven or knitted fabric itself. The purpose of the present invention is to provide an aromatic car seat H that can be used as an aromatic car seat H.

(Means for Solving the Problems) That is, the present invention provides a woven or knitted fabric to which fragrance-containing microcapsules are attached, in which the microcapsules and the silicone resin binder are in a ratio (weight ratio) of 2:1 to 15. The aromatic car sheets are characterized in that they are made from a fragranced material given in the above-mentioned manner, and the amount of both of these substances attached accounts for 0.3 to 7.0% of the weight of the knitted fabric in the attached part.

Preferred processing methods for these aromatic car seats include dipping, puffing, coating, and immersion in a treatment agent containing a mixture of fragranced microcapsules and a silicone resin binder to a woven or knitted fabric or car seat that has been previously treated with clear water. There are methods of applying by spraying or printing.

In the present invention, the term "IL product" refers to a known woven or knitted fabric, and the woven or knitted fabric may be any of natural fibers, recycled fibers, synthetic fibers, or blended yarns, doubled yarns, mixed fibers, etc. of these yarns. In terms of water-repellent treatment, the larger the basis weight, the better. Furthermore, from the viewpoint of binder adhesion, fibers having irregularities such as cotton, porous fibers having macrovoids, or fibers having affinity with the binder are advantageous.

Furthermore, the woven or knitted fabric used in the present invention has a binder of m kHz.
It is preferable to perform 1B water treatment in advance so that the binder and microcapsules do not penetrate into the system or into the fabric grains and harden the texture.This allows the binder and microcapsules to mainly adhere to the surface of the fabric, changing the original texture of the If material. No, 1. Known methods can be used for water treatment, but for applications that do not require water repellency, it is sufficient to simply impregnate and dry a relatively small amount of treatment agent. There are two methods: impregnating and drying an emulsion containing a protective colloid and impregnating with an emulsion containing a methylhydrodiene polysiloxane and metal soap, followed by heat treatment.

The car seats referred to in the present invention are l! It may be car seats mainly made of knitted fabrics, nonwoven fabrics, raised products thereof, pile fabrics, or lace fabrics, and examples thereof include car seat materials, ceiling materials, side materials, headrest materials, and seat covers.

The composition of the fragrance-containing microcapsules used in the present invention is not particularly limited as long as it can be broken by appropriate friction and emit a fragrance, but low-formalin microcapsules are preferred.

Therefore, the particle size is usually about 5 to 20 μm, and the capsule thickness is 0.3 to 3 μm, preferably 0.5 to 20 μm.
It is 1.5 μm. Various manufacturing methods have been developed for microcapsules, and a representative example is the method described in Japanese Patent Publication No. 37-7724.

The silicone resin binder used as a binder is
It has a coating effect and plays a role as an adhesive between the microcapsules and the knitted fabric. Silicone-based aqueous emulsion type, such as organopolysiloxane prepolymer, has excellent dispersibility in water and can be easily diluted with water. It is preferable to emulsify the main component with an emulsifier. This hardens upon removal of water and forms a rubbery film having the characteristics of silicone rubber, and exhibits a durable adhesive effect. Furthermore, emulsions of low-temperature-reactive organopolysiloxane prepolymers have a temperature of 150°
The microcapsules can be fixed to the fibers by drying at a temperature of 5° C. or less, and a more preferable low-temperature reaction type organoborisiloxane prebolimer emulsion is, for example, one that is bonded to a silicon atom in one molecule. For 100 parts by weight of an organopolysiloxane having at least two hydroxyl groups and its derivatives, 0.1 to 10 parts by weight of a reaction product of an aminofunctinal silane or its hydrolyzate and an acid anhydride and 1 to 10 parts by weight of colloidal silica. 5
1 to 60 parts by weight of a homogeneous dispersion of 0 parts by weight to the organopolysiloxane and 0.01 to 1 of a curing catalyst.
Examples include an aqueous silicone emulsion comprising 0.3 to 20 parts by weight of O, an anionic emulsifier, and 25 to 600 parts by weight of water.

This coating material is applied to the microcapsules.
5 to 5 times, preferably 1 to 2 times, to develop a sufficient adhesion effect. If the amount is less than 0.5 times, the coating effect will be extremely poor, while if it is more than 5 times the amount, the adhesion rate of microcapsules will hardly change, and on the contrary, problems will be caused in the soft texture of car seat a. Moreover, the amount of both of these deposited usually accounts for 0.3 to 7.0%, preferably 0.5 to 3.0%, of the weight of the woven or knitted fabric in the deposited portion. That is, since microcapsules can be sufficiently attached to woven or knitted fabrics by being provided with a silicone-based resin binder in the above proportion, if the amount of both of these substances attached is less than the above 0.3%, the fragrance will not be present. On the other hand, if it exceeds 7.0%, it affects the texture of the woven or knitted fabric, and there is also the problem that the fragrance sometimes emitted becomes too strong. is also inappropriate. In other words,
The above-mentioned deposition amount satisfies all the requirements of having a favorable fragrance dispersion effect, a suitable texture and softness, and the fragrance having suitable durability.

It is preferable to apply a silicone resin binder to a final fabric product such as a woven or knitted fabric that does not undergo any post-processing. For example, it can be immersed in a treatment liquid tank made of a silicone resin binder, and then dehydrated and dried in a manner that does not impair its texture. Furthermore, in the case of a lace seat cover, aroma microcapsules can also be attached to the seat cover.

(Example) The following 5 types of dyed fabrics were treated with 18 water according to the standard method (TA water water softener mainly composed of methylhydrodiene polysiloxane), and microcapsules containing fragrance of urea resin 10g/l. (Jasmine fragrance, average particle size 8
Silicone-based aqueous emulsion 3 whose main component is epoxy-modified dimethylpolysiloxane resin (film thickness: 1 μm)
0 g//! The adhesion amount of the microcapsules mixed with the woven or knitted fabric or the clothing material on which it is attached is 0.
The emulsion was immersed in a woven or knitted fabric to a concentration of 45%, centrifugally dehydrated to a pick-up rate of 100%, dried, and heated at 120 to 130° C. for 1 minute. The fabric to which the fragrance-containing microcapsules were attached in this manner was dried according to a conventional method and sent to a final setting process to produce a fragranced fabric.

■Backnear 5 d/36 f polyester thread 28G2 using three types of polyester thread: round cross section, 75 d/36 f round cross section, triangular cross section and cationic dyeable on the front.
Fancy knitted fabric of the bar ■French back brushed fabric using 75d/36f round cross section polyester yarn for the back, 75d/36f round cross section, triangular cross section and cationic dyeable polyester yarn for the front ■Back and Velor fabric using 75d/36f round cross-section polyester yarn for the middle and two types of polyester yarn, round cross-section and cationic dyeable for the front ■50d/24f round-section PBT processed yarn and 50d round cross-section polyester yarn for the back and middle /24f two types, stretchy twill fabric using 75d/36f round cross-section polyester yarn on the front ■3 60-number 60 round cross-section polyester yarn 75d/36f and insert thread polyester/cotton blend yarn Raschel knitted lace with twisted yarn Next, a car seat was made from the above woven and knitted fabrics (1), (2) and (2), a side material was made from (2), and a seat cover was made from (2) and (2), and then their washing durability and texture were tested.

The washing resistance test was conducted according to the JIS L0217103 method, and was expressed as the number of times until the fragrance disappeared. In addition, the fragrance was evaluated by 10 people on a 5-point scale (0 points for those that emit a suitable fragrance, +1 for those that are too strong above and below that, and -1 and -2 for those that are too weak). )
The average score was taken as the evaluation score. Regarding the feel, those that the same <10 people felt were good, slightly inferior, and inferior were set as O, -1, and -2, respectively, and the average score was used as the evaluation score.

Looking at these results, it is clear that the aromatic car seats according to the present invention have achieved the objectives of our laboratory, that is, they have a durable, pleasant scent and a good texture. Will.

(Effects of the Invention) The present invention achieves the following effects with the configuration described above.

First, since the fragrance-containing microcapsules are attached to car seats, the capsules are gradually torn during driving or due to intentional friction, releasing a pleasant fragrance. Therefore, the fragrance does not emanate and disappear all at once, but has sufficient sustainability.

In addition, by applying a silicone resin as a binder to the microcapsules in an appropriate proportion, the adhesive strength and adhesion properties are significantly improved, and the desired adhesion amount and fragrance durability are achieved.

The processing method does not require complicated processing steps, and by applying a processing agent containing a mixture of microcapsules and a silicone resin binder in an appropriate ratio, and performing a heat treatment, the aromatic caramel according to the present invention can be used. This is a method that can reliably produce sheets.

Claims (1)

[Claims] (1) A woven or knitted fabric to which fragrance-containing microcapsules are attached, in which the microcapsules and silicone resin binder are provided at a ratio (weight ratio) of 2:1 to 1:5, and the amount of these two attached is 0.3 of the weight of the woven or knitted fabric in the attached area
Aromatic car seats characterized in that they are made from aromatic woven and knitted fabrics that account for ~7.0%.